We recently bought a Master Spas H2X swim spa. I know they are not very common, so I wondered if anyone else had one. We have had some issues with balancing the water due to the spa store giving us bad information, so I am starting to handle this on my own. I ordered a Taylor bromine test kit that should be here today. I appreciate all the information on this site. It has been hugely helpful. I'm sure I will have some questions soon!